27391275133 has 4 divisors (see below), whose sum is σ = 27393474240. Its totient is φ = 27389076028.

The previous prime is 27391275127. The next prime is 27391275137. The reversal of 27391275133 is 33157219372.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 27391275133 - 2⁹ = 27391274621 is a prime.

It is a super-3 number, since 3×27391275133³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 27391275133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27391275137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1080763 + ... + 1105816.

It is an arithmetic number, because the mean of its divisors is an integer number (6848368560).

Almost surely, 2^27391275133 is an apocalyptic number.

It is an amenable number.

27391275133 is a deficient number, since it is larger than the sum of its proper divisors (2199107).

27391275133 is a wasteful number, since it uses less digits than its factorization.

27391275133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2199106.

The product of its digits is 238140, while the sum is 43.

The spelling of 27391275133 in words is "twenty-seven billion, three hundred ninety-one million, two hundred seventy-five thousand, one hundred thirty-three".